Component supplying apparatus, component mounting apparatus, component supplying method, positioning apparatus, and positioning method

Abstract

A component supplying apparatus includes a motor, a rotating body, a transmitting mechanism, and a predicting section. The rotating body engages with a carrier tape in which a plurality of components to be mounted on a circuit board by a component mounting apparatus are accommodated at predetermined pitches and pays out the carrier tape at the predetermined pitches for supplying the plurality of components. The transmitting mechanism transmits a driving force of the motor to the rotating body. The predicting section predicts a deviation amount of a supplying position of each of the plurality of components based on a model formula expressing a periodical fluctuation of the supplying position of each of the plurality of components that is due to the transmitting mechanism and caused at a time the carrier tape is paid out by the rotating body.

What is claimed is: 
     
       1. A component supplying apparatus, comprising:
 a motor; 
 a rotating body that engages with a carrier tape in which a plurality of components to be mounted on a circuit board by a component mounting apparatus are accommodated at predetermined pitches and gives out the carrier tape at the predetermined pitches for supplying the plurality of components; 
 a transmitting mechanism that is coupled to the rotating body and transmits a driving force of the motor to the rotating body; and 
 a predicting means for predicting a deviation amount of a supplying position of each of the plurality of components based on a model formula expressing a periodical fluctuation of the supplying position of each of the plurality of components, the periodical fluctuation of the supplying position being due to the transmitting mechanism and caused at a time the carrier tape is given out by the rotating body. 
 
     
     
       2. The component supplying apparatus according to  claim 1 , further comprising:
 a correcting means for correcting the supplying position of each of the plurality of components such that the deviation amount predicted by the predicting means is compensated for. 
 
     
     
       3. The component supplying apparatus according to  claim 1 , wherein:
 the transmitting mechanism includes a gear group constituted by a plurality of gears, and 
 the predicting means predicts the deviation amount using (i) a first formula that expresses, by a first function, a respective periodical fluctuation of the supplying position of each of the plurality of components that is due to each of the plurality of gears and (ii) a second formula that expresses, by a second function obtained by adding each of the first functions, the periodical fluctuation of the supplying position of each of the plurality of components that is overall due to the gear group. 
 
     
     
       4. The component supplying apparatus according to  claim 1 , further comprising:
 a storage device to store information of the model formula. 
 
     
     
       5. The component supplying apparatus according to  claim 4 , further comprising:
 a battery; and 
 a backup means for supplying power from the battery to the component supplying apparatus at a time power supply to the component supplying apparatus is shut off.